Results for 556NATO UPPERS

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 16.5" Barrel

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black

Rock River Arms AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

Spike s Tactical 16-inch AR-15 Complete Upper 5.56 NATO M4 LE with 9-inch Rail

Lbe Unlimited Ar75rbk Ready Build Kit 7.5 Chf Barrel

FightLite Industries MCR556DFRM Dual Feed Complete Upper Receiver 5.56x45mm 16.25" Barrel M-LOK Handguard

Lbe Unlimited Ar145rbk 14.5 Upper Build Kit 223 Remington Chf Barrel

Lbe Unlimited Ar125rbk 12.5in CHF Barrel 223 Rem Pistol Length Upper Build Kit

Geissele USASOC URG-I Near Clone AR-15 Complete Upper Receiver 5.56x45mm NATO 14.5" Pinned Barrel

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black

Lbe Unlimited Ar137rbk Upper Build Kit 223 Remington

FightLite Industries MCR Dual Feed Upper 5.56 12.5 Barrel

Daniel Defense MK18 AR-15 Pistol Complete Upper Receiver 5.56mm NATO 10.3" Barrel Flat Dark Earth

Spikes Tactical ST-15 Enhanced Mid-Length Complete Upper 5.56 / .223 Rem 16-inch CHF

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 M-LOK Picatinny Rail, Black

Luth-AR A2 Carry Handle Style Stripped Upper Receiver w/A2 Rear Sight Cut, Black

Geissele USASOC URG-I Near Clone AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 11.5" Barrel

Luth-AR A2 Carry Handle Style Assembled Upper Receiver w/A2 Rear Sight Cut, Black

Geissele USASOC URG-I Near Clone AR-15 Pistol Complete Upper Receiver Improved Complete 5.56x45mm NATO 10.3" Barrel with Surefire SF4P

Colt LE6933EPRII-PRO 5.56mm 16.1" Bbl Matte Black Metal MBUS Sights Surefire Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-PRO-SF3-CK

Colt LE6933EPRII-PRO 5.56mm 11.5" Bbl Matte Black Metal MBUS Sights HuxWerks Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-PRO-HUX-CK

Colt LE6933EPRII-SF3-CK 5.56mm 11.5" Bbl Matte Black MBUS Sights Surefire Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-SF3-CK

Colt LE6933EPRII-HUX-CK 5.56mm 11.5" Bbl Matte Black MBUS Sights Hux Werks Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-HUX-CK